Results 261 to 270 of about 2,472,889 (327)

Mueller Matrix Microscopy

Biomedical Optics and 3-D Imaging, 2008
We describe here a new imaging technique, Mueller matrix microscopy, for investigating the anisotropic properties of the refractive index in biological samples. The system’s capabilities are demonstrated first on mica.
Mircea Mujat, Nick Iftimia, Dan Ferguson, Dan Hammer   +3 more
openaire   +1 more source

Snapshot Mueller matrix spectropolarimeter

Optics Letters, 2007
We present a new snapshot technique for performing spectrally resolved Mueller matrix polarimetry. The basic approach is an extension of the channeled spectropolarimetry technique, employing frequency-domain interferometry to encode polarization information into modulation of the spectrum.
Nathan, Hagen, Kazuhiko, Oka, Eustace L, Dereniak   +2 more
openaire   +2 more sources

Auto-detection of cervical collagen and elastin in Mueller matrix polarimetry microscopic images using K-NN and semantic segmentation classification.

Biomedical Optics Express, 2021
We propose an approach for discriminating fibrillar collagen fibers from elastic fibers in the mouse cervix in Mueller matrix microscopy using convolutional neural networks (CNN) and K-nearest neighbor (K-NN) for classification.
C. Roa, V. N. Du Le, M. Mahendroo, I. Saytashev, J. Ramella-Roman   +4 more
semanticscholar   +1 more source

Mueller matrix microscopy

SPIE Proceedings, 2013
We describe here Mueller matrix microscopy, an imaging technique for investigating the anisotropic properties of the refractive index in biological samples. Tissue properties probed by polarization are the anisotropic real and imaginary parts of the refractive index that modify the polarization. Physical Sciences Inc.
Mircea Mujat, R. Daniel Ferguson, Nicusor Iftimia   +2 more
openaire   +1 more source

Self-registration of constant-step rotating Mueller matrix polarimeters.

Optics Letters, 2022
Time-division framework is commonly used in Mueller matrix polarimeters (MPs), which takes extra numbers of images at the same position in an acquisition sequence.
Tao Xuan, Haoyu Zhai, Honghui He, Chao He, Shaoxiong Liu, Hui Ma   +5 more
semanticscholar   +1 more source

Mueller matrix roots depolarization parameters

Applied Optics, 2012
The Mueller matrix roots decomposition recently proposed by Chipman in [1] and its three associated families of depolarization (amplitude depolarization, phase depolarization, and diagonal depolarization) are explored. Degree of polarization maps are used to differentiate among the three families and demonstrate the unity between phase and diagonal ...
Hannah D, Noble, Stephen C, McClain, Russell A, Chipman   +2 more
openaire   +2 more sources

Polarization-based underwater image enhancement using the neural network of Mueller matrix images

Journal of Modern Optics, 2022
In the paper, a method of underwater image enhancement based on the neural network of Mueller matrix images is presented. The novelty of our study lies in the employment of the neural network based on Mueller matrix imaging, which can provide complete ...
Haoyuan Cheng, J. Chu, Yongtai Chen, Jianying Liu, Wenzhe Gong   +4 more
semanticscholar   +1 more source

Axisymmetrical Mueller matrix polarimeter

SPIE Proceedings, 2009
Mueller matrix polarimeter using the axisymmetrical polarized and analyzed optics is proposed. The axisymmetrical optics has a potential to bring out the polarization properties of a sample which kept in beam spot. A key device of this method is a detector named "a ring beam detector".
Toshitaka Wakayama, Yukitoshi Otani, Toru Yoshizawa   +2 more
openaire   +1 more source

Visible Mueller matrix spectropolarimetry

SPIE Proceedings, 1997
A Mueller matrix spectropolarimeter operating between 400- 900nm has been developed for optical element characterization at The University of Alabama in Huntsville. Mueller matrices are measured as a function of wavelength and the spectral behavior of the polarization properties can be determined. Measurements of an achromatic retarder in transmission,
Elizabeth A. Sornsin, Russell A. Chipman
openaire   +1 more source

Polarization enhancement mechanism from tissue staining in multispectral Mueller matrix microscopy.

Optics Letters
Mueller matrix microscopy can provide comprehensive polarization-related optical and structural information of biomedical samples label-freely. Thus, it is regarded as an emerging powerful tool for pathological diagnosis.
Yuzhu Shi, Chunyan Chen, Liangyu Deng, Nan Zeng, Hongtao Li, Zhiyan Liu, Honghui He, Chao He, Hui Ma   +8 more
semanticscholar   +1 more source